Composition for skin patch preparation and process for preparing the same
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United States of America Patent
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Mar 21, 2000
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app pub date -
Feb 18, 1998
filing date -
Mar 24, 1997
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Abstract
A composition for a skin patch including a synthetic polymer gel prepared by reacting a water-soluble polymer of an aliphatic carboxylic acid or a salt thereof with a sparingly soluble aluminum compound, an organic acid containing a hydroxyl group in its molecule as a reaction accelerator, and an ethylenediamine compound as a reaction inhibitor in the presence of water at a pH of 4.0 to 6.1. The composition can homogeneously gel at any crosslinking rate and does not cause any change in quality with the lapse of time.
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